I have customized text editing bindings in ~/Library/KeyBindings/DefaultKeyBinding.dict but they all stopped working in TextEdit.app when I upgraded to Lion. They still work fine in other Cocoa apps like Safari.
The system default bindings like ^F for moveForward: work as usual.
Has anyone else who uses DefaultKeyBinding.dict noticed this? Is there a way to fix it or any other way of customizing the key bindings in TextEdit?

{"a"=(insertText:,"test");}? – Lauri Ranta Jun 7 '12 at 0:46